SPA 112 and 122 returns 486 Busy Here while line is idle
I am running on an issue where the SPA112 (and also ran into the same on an SPA122) returns a "486 Busy Here" on the INVITE request even though the line is idle.
I tried a soft reboot and even upgraded it to 1.3.2 but still no luck. Nothing much coming from the debug and since it is not the first time this happens, I would like to see if others ran into this and what was done to recover from it.
I am asking my customer to unplug the ATA and wait a minute. I'll see if that fixes the issue.
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